Sediment-remover for steam-boilers.



M. HUPPMAN.

SEDIMBNT REMOVER POR STEAM BOILBES.

APPLICATION I'ILED JULY 7, 1910. 974,064, Patented Get. .25, 1910.

WIT/VESSES:

^ To all whom 'it may concern: .3v-'Be it known that I,-Mr1cn HUFFMAN, a

citizen et' the United-States, aii'd -a resident -otti`ribson City, in-theA county/of Ford and State of Illinois, li'ave invented certain Iinpro'veinents in' Sediment-Removers A UNITED srnrrns PAIENT OFFICE.

MIKE HUFFMAN, or 'GIBSON Grrr,` ILLINOIS, mIGNoR or ONE-HALF 'ro LESLIE "Ai CRANSTON,l 0F GIBSON CITY, ILLINQIS.

for

i :.-Stean'i-Boilergof which the following isla Si specication. 1

Bly-invention is an' improvement in'that class tif-devices consisting of a' blow-out pipe ,if arranged within the boiler close to the bot- :.toin thereof and provided with openings .-ffthrongh which the sediment is expelled by rounding thepipe.-

The details ot construction, arrangement,

iiud operation ot' pai-ts are as hereinafter del seiilnd .-aiul illustrated inthe accompanying drawing. in whichligure'l 'is a sectional elevation ot'the lowei'4 portion ot a .steam boiler with my improvedattachiiieut applied thereto. Fig. 1-1s a vertical transverse section on the lii'ie i 52.-2 of Fig. l. -4

.\.pipe A is screwed into the end ot' the boiler and is closed at its 4inner end :l: sare A .an opening which isprovided for the zuljustopening so that it maybe adjusted to open or close the pipe as required. The said pipe is provided with a series ot' openings 5 in its lower side., theA same being spaced apart. a unit'orm distanceyand serving, in practice, las escapes or outlets Vfor sediment; Upon this fixed pipe A I. arrange another pipe l5 in such manner as to tit somewhat loosely thereon so that it may be adjusted lengthwise.' It is also provided with openings which are arranged an unequal distance apa rt; that is to say, they are arranged at progressiif'ely greater distances apart, starting from the inner end of the pipe.

"For adjusting the outer pipe Bon the -inner one, l employ a rotatable serew`shaft 7 which is jonrnaled in' a. stuffing-box' 8- secured to the side ofthe boiler as shown, the' threaded portion of the shaft working in a` threaded hole 2 in the head 9 of thepipe B'.

and its innerei'id being seated in. a--liole inw drag ol' push the sediment toward the opentlie head l ofthe inner pipe A, .while a collar l() is provided adjacent to the stutling-boitl.`:

` sEDIMEnr-REMQV'ER Fon' STEAM-normas.

- speeiiictioii of L ttrsP-atvnt. i. Patented Oct. 25., 1910. Application ined July v, 1910. serial no. 570,760.;

By. this means, it is apparent that, upon ro: tating the screw-shaft 7 in one direction or the other, the.outer pipe B will be adjusted, l

longitudinally, to the left or right, correspondingly. For 'the purpose of -rotating the shaft, a crank 11 Imay be Aemployed. as shown.- 1

The outer'slidable pipe B is provided with a series of Scrapers whose form, attachment, and manner of operation are as follows. As shown in the"drawing, the scraperl pro er 12 is a flat' blade or plate'whose outer e ge is curved corresponding to the curve of the bottom of the boiler, it being thus approximatelycrescentsshaped. The plate is cast inte ral 'wit-h a hub 13, which is adapted to fit s ida-bly on the pipe B and is provided with' a clamp-screw 14 for securing the scraperat any desired point. on the pipe. A series `of'these'scrapers is provided, there being'preferably one arranged -between each two cfu-,the 'openings 6 in the'outer pipe. The lower curved edge of ,each v,scraper is arranged to slide with easy friction over the bottom of the boiler. `When it is desired to clean tlielatter` that is to say,'when it is desired to 'remove mud or other sediment which may have accumulated upon the bottoni thereof, the stop-cock 4 is opened and the rcrank 11 is turned, whereby the outer pipe 'i B, together with all thescrapers 'attached thereto, is pushed 'endwise on the inner pipe A, and such movement may be continued until the head 9 of the outer pipe comes in contact with the head 1 ofthe inner pipe or .with the collar 10 with which thescrewshaft 7 is provided. When either of these contacts occurs, the crank 11 is rotated in the o osite direction, whereby the outer pipe with all the Scrapers, will beinoved in the opposite direction, and thus the bottoin of the boiler will be thoroughly scraped.

As shown in ,Fig 1, the'adjustinent. of the twopipes relative to each other is such that all the openings of the inner one are closed; butpsV the outer pipe is pushed one way or the other, the openings and 6 in the respective pipes successively register, that is t say, register one at a time, and the mud or other sediment lying beneath or adjacent to the exposed opening is expelled by pressure oi" steai'n-acting'on the water surround ing the pipes. ln practice, the Scrapers 12 iiigs'when .the'pipe B is pushed one way or the other, and thus the sediment is 'accumu--f lated directly-beneath the openings of the inner pipe, which facilitates takin" up and registration voccurs at a time, this being due to the fact that the openings of the o utexpipe B are progressively greater distancesv apart. The arrangement. of the Scrapers is such th'atfinvpractice, they move between the adjacent openings 5 of the inner pipe. The

4Scrapers .19. working close to the bottom of -the'boiler, will remove scale as well as take up and push along'mud or other loose sediment. 4The holes in the inner )ipe are of the same width in the direct-ion or1 the length of said pipe, but are of greater length in the direction of the circumference of 'tbe pipe. This construction is adopted in order that if the outer pipe should turn slightly, owingr 'to friction with the screw-shaft, the full area of the outer holes or openings G would still register with -those of the inner pipe.' It is to be understood, however, that the form and arrangement of the Scrapers relative to the bottom of the boiler will prevent such movement of the outer pipe upon the inner one when the crank is rotated, save to a very slight degree. It is a matter of course that the lengtl i and thickness of the scrapingblades 12 will boiler. A thickness of one-half to three- Aquarters of an inch will sulliee.

correspond more or less to the size of the The blades l2 and collars 13 may be made of malleable cast iron and the. 'clamping screws 14 may be made of the sanne material, toavoid rus f L The'combination with a boiler, of a sediment remover comprising a fixed inner pipe having :Leut-oil valve located exterior to'tlle boiler, and -au .outer pipe which is slidable thereonlengthwise, the same being arranged near-the bottom of the boiler and both provided in the under side with openings which are adapted to register, the openings'of one of the pipes being at progres.

sively greater distances from eachother, und those of the other pipe being arranged equidistantly, whereby the openings register successively when the outer pipe is slided on the inner, and'a screw-shaft attached to the closed head of the inner pipe and arranged in a threaded 'opening in the head of the outer pipe, for adjusting the latter in the manner described.

2. The combination witlra hoile'r and a fixed pipe and an outer pipe slidable lengthwise thereon and 'both provided with openings adapted to register successively, of u series of Scrapers comprising portions adapted. to work on the bottom of' the boiler and having 'hubs that are adjustable along the outenpipe, and chuupsere\\'s for securing the Scrapers in any required adjustment, substantially as described.

MIKE HUFFMAN.

Witnesses:

.M. L. Srnns,

E. W. S'rnnnss. 

